Perforating attachment



(No Model.)

J. E. TUCKER. PERFORATING ATTACHMENT.

No. 473,483. Patented-Apr. 26, 1892.

UNITED STATES PATENT OFFICE.

JUNIUS E. TUCKER, OF MEMPHIS, TENN ESSEE.

PERFORATING ATTACH M ENT.

SPECIFICATION forming part of Letters Patent No. 473,483, dated April26, 1892.

Application filed April 15, 1891.

T0 on whom it may concern.-

Be it known that I, JUNI US E. TUCKER, a citizen of the United States,residing at Memphis, in the county of Shelby and State of Tennessee,have invented a new and useful Perforating Attachment, of which thefollowing is a specification.

This invention is an improvement in perforating attachments forprinting-presses, and has for its objects to provide an attachment forprinting-presses by the use of which paper may be perforated at the sametime that it receives the impress of the type; to provide a perforatingattachment for printing-presses which may be used to perforate the paperat the same time that it receives the impress of the type, yet so toconstruct and arrange the perforating attachment that it will not comein contact with the inking-rollers, and therefore will neither cut saidrollers nor ink the paper where the perforation is made, and to providea perforating attachment for printing-presses which may be secured tothe gripper-bars, either horizontally or vertically, as desired.

The invention has for further objects the production of a perforatingattachment for printing-presses which will be simple, durable,inexpensive, thoroughly efficient in use, and which will not tear thepaper.

\Vith these objects in view the invention resides in the various noveldetails of construction and in the combination of parts hereinafterfully described, and particularly pointed out in the claims.

In the drawings, in which I have illustrated my invention, and in whichlike letters of reference indicate corresponding parts, Figure 1 is aperspective view of part of a printingpress, showing my device appliedto the gripper-bars. Fig. 2 is a similar view. Fig. 3 is a sideelevation of the perforator-bar. Fig. 4 is a perspective 'view of thesame. Fig. 5 is a cross-section thereof; Fig; 6, a detail view of ascoring-blade, and Fig. 7 is a perspective view of a cross-bar; Fig.8, aperspective view showing the device in front of a chase of type.

In the drawings the letter A designates the platen and B thegripper-bars of an ordinary printingpress. These gripper-bars B areprovided on their inner edges with dovetailed Serial No. 389,060. (Nomodel.)

grooves 12, which are provided for the purpose of affording a means ofattachment for the perforatingbars and also for affording a means ofattachment for the cross gripperbars, which are marked by the letter C.These cross gripper-bars have their inner edges provided with dovetailedgrooves c, similar and for a similar purpose to the grooves b. The endsof these cross-bars C are provided and each wing is provided with asmall setscrew 0 for the purpose of securing the crossbar at any pointalong the length of the main gripper-bars B. Each cross-bar O isprovided with a notch near one end for a purpose to be described.

D designat s the perforating-bar itself, which is provided with lateralwings or extensions d, of a dovetailed shape, the said wings extendingrearwardly in a direction perpendicular to the broad side of theperforator. These wings d are provided with small set-screws d, for thepurpose of securing the perforator bar in the dovetailed grooves 11 orin those marked 0. This perforator-bar is provided near either end withan inclined slot (Z which extends inwardly toward the center, and thebody of the perforator-bar is provided with a slot d which extendsthrough from one side to the other. WVithin the slot d theperforating-knife d is located,the said knife being held the'reinnormally with its cutting-edge within the lower edge of the bar by meansof the leaf-sprin gs (1 which are secured to the said knife at one endand to the perforator-bar D at the other by means of the screws d".Instead of having the perforatingknife d located in the slot (1 I mayuse Wherever it is desirable the scoring-blade d in place thereof.

E designates a bar of steelor other metal,

type in the frame in such a position that when the platen bears thegripper-bars up against the type the said bar E will press upon theupper edge of the perforating-knife d or the upper edge of thescoring-blade d both of which upper edges in their normal positionextend above the top of the bar D.

The steel bar E presses the perforatingknife (1 downward, so that itsteeth project with dovetailed wings or lateral extensions 0',

which is designed to be locked up with the must be employed.

beyond the lower edge of the bar D and cut into the paper secured uponthe tympanshcet. I

In using my attachment the same is secured to the gripper-bars B in themanner already described, the position of the perforator-bar D inrelation to the gripper-bars being determined by measurement with thecopy of work to be done on the t-ympan. This arrangement is effectedwhen the paper is to be perforated in a line perpendicular to the p0sition taken by the gripper-bars when they touch the paper; but if it bedesired to perforate the paper in a line at right angles to the formerpositionthatis,in aline parallel to the position taken by thegripper-bars where they meet the paper-the cross gripper-bars Thesecross-bars O are first secured to the gripper-bars B with their innergrooved sides facing each other and at such a distance as the length ofthe perforator-barB, approximately. The perforatorbar D is securedbetween the bars 0 by inserting one of the dovetailed wings d in each ofthe dovetailed grooves 0 through the notches 0 which are provided forthe purpose of allowing the insertion of the perforator-bar D after thecross-bars O are in position.

It will be understood that the springs cl cause the perforating-knife dto be retracted from the paper before the gripper-bars raise from thetympan-sheet, and thus the paper, which might stick to the teeth of theperforating-knife, is released from these teeth by the bottom edge ofthe bar D.

The use to which my improvement maybe put is for perforating receipts,notes, drafts, coupons, railroad-tickets, and the like and for scoringinvitations, fancy cards, and the like.

Itis to be noticed that the pertorator-bar may be secured in variouspositions between the bars 0 or between the bars B, as it is adjustablein these bars.

I do not claim,broadly, in a device for perforating paper, thecombination, with the side arms of the gripper, of the perforating-barslongitudinally adjustable thereon, nor the combination, in adeviceforperforating paper,

of the rigid side arms with the perforatingbars, the said arms and barsbeing provided with means for attachment one to the other and beingadjustablein relation to each other.

Having thus fully described my invention, what I claim, and desire tosecure by Letters Patent, is

1. In a perforating attachment for printingpresses, the combination,with the gripperbars provided with dovetailed grooves on their innersides, of a perforator-bar having dovetailed wings extending laterallyfrom either end, the said wings being adapted to be secured within thegrooves in the gripper-bars, substantially as and for the purpose setforth.

2. In a perforating attachment forprintingpresses, the combination, withthe gripperbars provided with dovetailed grooves, of cross gripper-barshaving dovetailed wings extending laterally from their ends, and meansfor securing said wings within the grooves in the gripper-bars, the saidcross gripper-bars being provided with dovetailed grooves and withnotches on their inner opposite sides, and a perforator-bar providedwithlateral dovetailed wings adapted to be secured in the dovetailedgrooves of the cross-bars, all substantially as and for the purpose setforth.

3. In a perforating attachment for printingpresses, the combination,with the perforator-' bar D, vertically and longitudinally slotted at dand provided with inclined slots d which connect with the vertical slot01 of the knife d received in the slot (1 and projecting at the endsintothe slot (Z and provided with inclined notches registering with saidinclined JUNIUS E. TUCKER.

Witnesses:

FRANK S. VAN HORN, GEO. B. GRAHAM.

